11231012211 has 8 divisors (see below), whose sum is σ = 15082415040. Its totient is φ = 7433475432.

The previous prime is 11231012203. The next prime is 11231012239. The reversal of 11231012211 is 11221013211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11231012211 - 2³ = 11231012203 is a prime.

It is a super-2 number, since 2×11231012211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231012281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13466025 + ... + 13466858.

It is an arithmetic number, because the mean of its divisors is an integer number (1885301880).

Almost surely, 2^11231012211 is an apocalyptic number.

11231012211 is a deficient number, since it is larger than the sum of its proper divisors (3851402829).

11231012211 is a wasteful number, since it uses less digits than its factorization.

11231012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26933025.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11231012211 its reverse (11221013211), we get a palindrome (22452025422).

The spelling of 11231012211 in words is "eleven billion, two hundred thirty-one million, twelve thousand, two hundred eleven".